System for moving and aligning modular house units onto a foundation

ABSTRACT

This invention relates to a system and method for placing a module unit on a site foundation. In accordanced therewith means are provided for supporting a module unit alongside the foundation. Spaced tracks extend from between the module and support means across the foundation. Also included are first antifriction bearing means between the module and tracks for movement of the module along the tracks, second antifriction bearing means located between the module and the track for allowing transverse movement of the module relative to at least all but one of the tracks, and means between the first and second antifriction bearing means for providing rotation of the module unit relative to the tracks. Means are also provided for moving the module along the tracks.

United States Patent [191 Baxter 1 SYSTEM FOR MOVING AND ALIGNINGMODULAR HOUSE UNITS ONTO A FOUNDATION [75] Inventor: Bobby G. Baxter,Warrenton, Mo.

[73] Assignee: The Binkley Company, Warrenton,

[22] Filed: Mar. 8, 1973 [2]] App]. No.: 339,081

Related U.S. Application Data [63] Continuation-impart of Ser. No.216204, Jan. 7,

1972, Pat. No. 3,794.86

[52] U.S. Cl. .1 214/1 H; 214/38 BA; 214/515 [51] Int. Cl. B65g 67/24{58] Field of Search 214/38 B, 38 BA, 38 BB, 214/1 H, 517; 238/13;IDS/366 R, 368 B;

[56] References Cited UNITED STATES PATENTS 2,234,522 Fleet 105/178 XJune 3, 1975 3.231,]21 H1966 Powell 214/515 Primary Examiner-Robert G.Sheridan Attorney, Agent, or Ft'rm-Rogers. Ezell & Eilers [57] ABSTRACTThis invention relates to a system and method for placing a module uniton a site foundation. in accordanced therewith means are provided forsupporting a module unit alongside the foundation. Spaced tracks extendfrom between the module and support means across the foundation. Alsoincluded are first antifriction bearing means between the module andtracks for movement of the module along the tracks. second antifrictionbearing means located between the module and the track for allowingtransverse movement of the module relative to at least all but one ofthe tracks, and means between the first and second antifriction bearingmeans for providing rotation of the module unit relative to the tracks.Means are also provided for moving the module along the tracks.

10 Claims, 14 Drawing Figures 1 SYSTEM FOR MOVING AND ALIGNING MODULARHOUSE UNITS ONTO A FOUNDATION BACKGROUND AND SUMMARY OF THE INVENTIONThis invention is a continuation-in-part of copending US. Pat.application Ser. No. 2l6,204, filed Jan. 7, I972, now Pat. No. 3,794,l86, and relates generally to the building arts and more particularly toa novel system and method for moving and aligning modular houses and thelike onto foundations.

Heretofore house modules have been transported such as by tractortrailer from a fabrication point to a foundation site, and thereaftervarious means have been employed to move and align the module onto thefoundation. In one such means rails have been used together with rollersfor rolling the modules over the rails and onto the foundation. Whilethis system has proven superior to other types of systems used, it hashad problems caused by binding of the rollers as they move along therails due to the rails being nonparallel and/or not properly alignedwith the house foundation. Even with very careful rail alignment. whichis difficult and time consuming at the job site, these problems stilloccurred.

Even after the module was moved over the foundation, there weredifficulties in aligning the module in precise manner with thefoundation walls. The rollers themselves offered no latitude inmovement. and therefore the procedure was basically to lower the moduleonto the foundation and then by using brute force techniques, such aswith jacks, levers, and the like. attempt to shove the unit in properalignment. This was time consuming, required several additional men andwas imprecise.

Many of these problems were solved by the method and system disclosed incopending US. Pat. application Ser. No. 2I6,204, by the same inventor,filed Jan. 7, I972, be effectively eliminating the binding problemcaused by the rails being unparallel. and by providing a method andsystem for precisely aligning the module with the foundation bothquickly and easily. This invention represents still another improvementin such system and method, providing adjustability were the rails arenot properly aligned relative to the house foundation.

Generally, this invention comprises means for supporting a module unitalongside a site foundation, spaced tracks extending from between themodule and support means across the foundation, and a plurality ofroller pads mounted between the module and the tracks such that themodule is supported on the pads. Generally, each pad includes an upperbody section, a lower body section, and a roller track segment. Firstroller means are provided for supporting the lower body section formovement along the track. Second roller means are provided forsupporting the roller track segment on the upper body section fortransverse movement of the roller track segment relative to the tracks,the module being supported on the roller track segmentsv Means are alsoprovided for mounting the upper body section on the lower body sectionfor rotation relative thereto about a generally vertical axis.

Hence, in accordance with this invention. means are provided forallowing movement of the module along the track, transverse movement ofthe module relative to the tracks, and rotation of the module relativeto the tracks about a generally vertical axis. The result is that themodule can be quickly and easily moved from a support means alongsidethe foundation onto, and in precise alignment with, the foundationdespite misalignment of the tracks and misalignment of the modulerelative to the foundation.

DESCRIPTION OF THE DRAWINGS FIG. 1 is an isometric view ofa housefoundation and a transporter showing the system and method of thisinvention, one module of a prefabricated house being shown in brokenline on the foundation. and another module of the prefabricated housebeing shown in broken line on the transporter and ready for movementonto the foundation;

FIG. 2 is an enlarged view in section taken generally along the line 22of FIG. 1;

FIG. 3 is a view similar to the right-hand portion of FIG. 2 as viewedfrom the end and beneath the foundation, and showing the modular unitsafter being lowered into position on the foundation;

FIG. 4 is an enlarged view in section taken generally along the line 4-4of FIG. 2;

FIG. 5 is an enlarged fragmentary view of the turnbuckle and roller padassemblies portion of FIG. 2',

FIG. 6 is an enlarged view in section taken generally along the line 6-6of FIG. 5;

FIG. 7 is an enlarged view in section taken generally along the line 7-7of FIG. 5;

FIG. 8 is a view in section taken generally along the line 88 of FIG. 5;

FIG. 9 is an enlarged view in section taken generally along the line 99of FIG. 4;

FIG. 10 is a view in section taken generally along the line I0I0 of FIG.9;

FIG. 11 is a view in section taken generally along the line ll-Il ofFIG. 10',

FIG. I2 is a view in section taken generally along the line 12-12 ofFIG. 10;

FIG. 13 is a view in section taken generally along the line I3-l3 ofFIG. 10; and

FIG. 14 is an enlarged view in section taken generally along the lineI4-l4 of FIG. 2.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT Referring to the drawingsmore particularly by reference numerals, there are illustrated atractor-drawn transporter generally designated by the reference numerall0, roller track segment 12 of square cross section, four six-wayadjustment roller pads 14, two winch assemblies I6, and track connectors18 (FIGS. 9 and I0) of square cross section, all constructed inaccordance with the teachings of the present invention.

The transporter I0 is of frame construction and includes an elongatedframe 20 which is extensible by virtue of a tail unit 2] whichtelescopes into longitudinal frame members 22 and is locked intoselected position by any well-known latching unit such as a bolt, pin.or the like. Three axles, each with two pairs of dual wheels 24, supportthe transporter 10, the number of wheels p yed depending on the loadrequirements. Four hydraulic lift pads 26 are mounted upon thetransporte 10 which incorporate hydraulic lines (not shown) connected tosuitable power means such as, for example. power means actuated by theengine of the tractor employed to pull the transporter 10, which isconventional equipment. The transporter described is one preferreddesign, but certainly other suitable transporters could also be used.

With particular reference to FIG. 1, two spaced parallel articulatedlengths of roller track segments 12 extend across the elongatedtransporter frame 20, span the space between the transporter I0 and aprefabricated house foundation 28 having side walls 29 and end walls 30,and extend across the side walls 29 of the foundation 28. The segments12 rest upon a wooden cap 31 and are supported between the side walls 29by jacks 32. The track connectors 18 telescope into abutting tracksegments 12 and are removably secured in position by clevis pins 34 andretaining cotter pins 35 (FIGS. 1. 9, and 10). The track segments 12between the side walls of the foundation terminate at abutting joints 36just inside the inner surfaces of the side walls 29 for purposes to bedescribed.

Again referring to FIG. 1, the four six-way roller pads 14 are shownmounted on the two links of articulated track segments 12 supporting asecond module 37 of a prefabricated house, the first module 38 thereofbeing shown in precision aligned position on the parallel articulatedroller track segments 12 awaiting final positioning on the cap 31.

Referring to FIGS. 9 through 11, each six-way roller pad 14 includes anupper fabricated body section 40 and a lower fabricated body section 41.The upper section 40 has two parallel side plates 43, each including acentral notch 44 in the lower edge thereof the notch 44 being somewhatwider than the width of the lower section 41. The side plates 43 arespaced apart and held together by a horizontal plate welded between theside plates 43 at the tops of the notches 44 such that the lower surfaceof the plate 45 extends slightly below the tops of the notches. Theplate 45 has an aperture 46 therein at its centerv A roller assembly 47is mounted between the side plates 43 on each side of the notch 44 withthe roller surfaces extending slightly above the upper surface of theplate 45. A roller track segment 49 is disposed on the roller assemblies47 for adjustment generally transversely of the links of the rollertrack segments 12 as will be more clearly described.

The lower body section 41 of each of the six-way roller pads 14 includesparallel side plates 54 each having a central notch 55 in the upper edgethereof, the notch 55 being somewhat wider than the overall width of theupper body section 40. The side plates 54 have flared ends 56 and arespaced apart and held together by a horizontal plate 57 connectedbetween the side plates 54 at the bottom of the notch 55, the uppersurface of the plate 57 being slightly above the bottom of the notch 55.Reinforcing plates 59 are welded between the flared ends 56 of the sideplates 54 for added support. A roller assembly 60 is rotatably mountedbetween the side plates 54 on each side of the notch 55 with the rollersurface being slightly below the lower surface of the plate 57. Theroller assemblies 60 ride on the track segments 12, the side plates 54extending below the roller assemblies 60 to guide the six-way roller pad14 in its movement along the track segments 12. The inside width of thelower body section 40 is slightly greater than the width of the tracksegments 12 to allow free movement thereover. A pin is welded to andextends upward from the plate 57 at its center. and a pull loop 66 iswelded to one plate 59.

The upper body section 40 is disposed transversely of the lower bodysection 41 with the notch 44 placed within the notch 55, with the pin 65extending into the aperture 46 of the plate 45, and with the lowersurface of the plate 45 resting on the upper surface of the plate 57.With the upper body section 40 so positioned relative to the lower bodysection 41, and with the notch 44 being somewhat wider than the width ofthe lower section 41, and the width of the notch 55 being somewhat widerthan the width of the upper section 40, the upper section 40 is free topivot about the pin 65 several degrees each way from normal to the lowersection and hence the track segments 12. This unique capability is ofsignificant importance as will be described.

An adjustment assembly 70 (FIGS. 4 and 11 through 13) is provided on oneof the roller pads 14 for axially moving its roller track segment 49,which assembly 70 includes a yoke assembly 71 pivotally mounted on aclevis pin 72 supported by and between the plates 43 adjacent one rollerassembly. One end of a rotatably screw shaft 74 extends through anaperture in a yoke element of the yoke assembly 51 and is maintainedagainst withdrawal by a collar 78 secured thereto. Secured near one endof the track segment 49 is a screw rider unit 80 which threadedlyreceives the screw shaft 74. The other end of the screw shaft 74 isformed at 82 to receive a ratchet tool 84 for selectively rotating thescrew shaft 74 to axially move the track segment 49 and a house modulethereon.

Hence, the one roller pad 14, having the adjustment assembly 70, has itsroller track 49 fixed for a particular setting of the screw shaft 74 toeffectively fix the transverse position of the module resting thereon inrelation to that roller pad. However, the roller track segment 49 of theother three roller pads 14 are free to adjust transversely to variationsin spacing between the track segments 12 as the modules are movedthereover. The upper body section 40 and therefore the track segments 49of all of the roller pads 14 are free to make angular adjustments asnecessary for proper alignment of the module with the foundation.

There is also included a bar 87 connected between the roller pads 14 oneach track. The connection is made by use of track connectors 88 weldedto the plates 59 at the ends of the lower body sections 41 opposite thepull loops 66, and by use of pins 89 for connecting the bar 87 to thetrack connectors. The purpose for the bar is to prevent a roller pad 14from rolling freely should it not bear part of the load as where thetracks are uneven.

A turnbuckle assembly 90 is provided at selected ones of the pads 14(FIGS. 2, 3, and 5 through 8) which is connected between the pad 14 andthe track segment 12 after the first modular unit 37 is positioned overthe foundation to hold the first modular unit securely in place whilethe second modular unit 38 is moved over the track and positioned. Theturnbuckle 90 is ofa conventional type having oppositely threaded bolts91 with eyelets 92 at their outer ends, the bolts being screwed intoopposite ends of a suitably threaded elongated hex nut 93. One end ofthe turnbuckle 90 is attached to the lower section 41 of the roller pad14 by means of a pin 95 welded to and extending outwardly from the endof one ofthe side plates 54 and into the eyelet 92. The end of theturnbuckle 90 is held onto the pin 95 by means of a cotter pin 97extending through aligned holes in the pin 95 and eyelet 92. The otherend of the turnbuckle 90 is secured to the track segment 12 by means ofa pin 99 having a head 100, which pin extends through the eyelet 92 andsuitable apertures in the track segment 12, and is held therein by meansof a cotter pin 101.

The turnbuckles 90 provide rigid. yet adjustable. connections betweenthe pads 14 and track segments 12 to securely fix the position of thepad and hence the modular unit on the track. They are useful. forexampie. to prevent movement of the first module due to wind while thesecond module is moved into position.

Each winch assembly 46 is of conventional construction. Referring toFIGS. 1, 2, and 14, the winch assembly 16 includes a U-shaped base 105supporting a cable drum 106 by rotatable shaft 107. A cable 108 is woundon the drum 106. A handle 110 is removable connected to one end of theshaft 107. A suitable lock (not shown) of a type commonly known in theart is provided to hold the drum 106 against reverse winding undertension on the cable 108 upon release of the handle 110. The winchassembly 16 is bolted to a winch support 112 which is of the same squarecross section as the roller track segments 12, and which is mounted inabutting relation to a roller track segment 12 by means of a trackconnector 18 and clevis pins 34. The free end of the cable 108 issecured to a hook 114, which engages the pull hook 66 (FIG. 9).

Each jack 32 has a base portion 116. a telescoping upper portion 117,and a hydraulic cylinder 118 connected by brackets 119 between the baseand upper portion to raise or lower the upper portion relative to thelower portion of the jack, A U-shaped cradle 120 is mounted at the topof the jack to receive the track segments 12.

OPERATION To move and properly align the modular units 37 and 38 ontothe foundation 28, a transporter 10, with the first module 37 mountedthereon is positioned generally parallel to the side walls of thefoundation as shown in FIG. 1. It is one of the novel features of thisinvention that this paralleling need not be exact. and this is a verypractical consideration since due to the inherent nature of theequipment and the rough terrain near the job site, exact paralleling isvirtually impossible and would certainly be very tedious and timeconsuming. Hence, for the purposes of this illustration. it is assumedthat the transporter is not exactly parallel with the side walls of thehouse foundation.

With the module 37 in position on the transporter, the track segments 12and the roller pads 14 are positioned as shown between the module andtransporter. It is to be understood that the module 37 may not, and mostlikely will not, be aligned exactly with the frame of the transporter,which also is not required with this invention. One way to position thetrack segments 12 and roller pads 14 between the module and transporteris to lower the jacks 26 to lift both the transporter and module. Blocksor the like are then inserted between the ground and the module. and thejacks raised to separate the transporter from the module so that thetrack segments 12 and roller pads 14 can be positioned therebetvxcen.With the track and pads in place. the transporter is again lifted withthe jacks 26 to again support the module so that the blocks can beremoved. When the transporter is lifted the second time. it is made gnerallv e\ en with the top of the foundation as shown in FIG. 2. Next.the other track segments 12 are positioned between the transporter andthe foundation and across the side walls 29 of the foundation as shownin FIG. 1.

it does not matter where the roller pad 14 having the adjustmentassembly is positioned, but it is preferable to position it so that itwill be near an Outs de wall of the foundation after the module is inplace for easy access in making final adjustments.

The hook 114 of the winch assembly 16 is placed in the eyelet 66attached to the roller pads 14 nearest the foundation and then byoperating the winch assemblies 16 the first module 37 is pulled over thetrack segments 12 and positioned with its long outside wall aligned withthe furthest side wall 29 of the foundation.

It is one of the primary features of this invention that the tracksegments 12 need not be exactly parallel making precise measurementsunnecessary. In fact. the tracks can be aligned by simply eyeballingvAny misalignment is compensated by the six-way roller pads 14.Furthermore, it is not necessary that the module 37 be parallel to theside walls 29 of the foundation prior to movement over the tracks 12since such misalignment is also compensated by the six-way roller pads14.

As heretofore described, the roller track segment 49 of the roller pad14 having the adjustable assembly 70 remains fixed for a given positionof the screw shaft 74, which effectively fixes the transverse positionof that portion of the module 37 resting thereon with respect to thetrack 12. However, as the module moves over the track on the rollerpads. the other three pads, each having a roller track segment 49 whichis free to move transversely on the rollers 48 with respect to theroller pad upper and lower sections 40 and 41, automatically adjust forvariations in track alignment. such as where the tracks arenon-parallel. preventing any binding be tween the roller pads and thetrack and making it extremely easy to move the module over the track. Inautomatically making this adjustment the roller track segments 49 of theother three roller pads remain fixed with respect to the module sincethe module is resting thereon, but as the distance between the spacedsegments of the tracks varies. the roller pad sections 40 and 41, whichare adapted to move over the rails 12, are also allowed to move back orforth as necessary with respect to the roller track segments 49. Also,if as the module 37 is moved over the tracks 12 it becomes necessary toparallel the module with the side walls 29 of the foundation. this maybe easily accomplished by simply turning the module as necessary, theturning and paralleling being made easy by the rotation capability ofthe upper section 40 relative to the lower section 41 about the pin 65of each of the roller pad assemblies 14.

Thus, in this manner the long outside wall of the module 37 is preciselyaligned with the side wall 29 of the foundation. The end walls of themodule are then aligned with the end walls 30 of the foundation byadjusting the screw shaft 74. Thus, by adjustment of the screw shaft 74and operation of the winches 16, precise alignment can be achievedbetween the module and the foundation because of the automaticadjustment capabilities of the six-way roller pad assemblies 14. Afterthe module 37 is properly positioned. it may be his tcncd in place byuse of the turnbuckles 90.

With the module 37 in proper alignment over the foundation and supportedby the jacks 32. a second module 38 is similarly pulled over the tracks12 by use of the hooks H4 and the winch assemblies 16, and it too isproper y aligned over the foundation and with respect to the firstmodule 37. As best shown in FIGS. 2 and 3, the track segment joints 36are located just inside the walls 29 of the foundation. so that with thetrack segments 12, roller pads 14 and modules 37 and 38 supported by thejacks 32 as shown in FIG. 2, the track segments 12 between thetransporter and the foundation. and the winch supports 2 can be easilydisconnected from the track segments 12 over the foundation by simplyremoving the pins 34. By lowering the jacks 32, the tracks 12, pads 14,and modules 37 and 38 are lowered until the modules rest in precisealignment on the cap 31. The outer ends of track segments 12 clear thewalls 29 of the foundation as the jacks are lowered. After removing theturnbuckles 90, further lowering of the jacks 32 allows removal of theroller pads 14 and track segments 12.

From the foregoing, it is obvious that a novel method and system hasbeen described for moving and aligning modular units onto a foundation,which eliminates the problems caused by misalignment of the tracks andof the modular units relative to the foundation, and which otherwisefulfills the objects of this invention.

Various changes and modifications may be made in this invention, as willbe readily apparent to those skilled in the art. Such changes andmodifications are within the scope and teaching of this invention asdefined by the claims appended hereto.

What is claimed is:

l. A module moving system for placing a module unit on a site foundationcomprising means for supporting the module unit alongside thefoundation, spaced tracks extending from between the module and supportmeans across the foundation, first antifriction bearing means betweenthe module and tracks for movement of the module along the tracks,second antifriction hearing means located between the module and thetracks for allowing transverse movement of the module relative to atleast all but one of the tracks as the space between the tracks variesalong their length, means between the first and second antifrictionbearing means for providing rotation of the module unit relative to thetracks. and means for applying force to move the mod ule along thetracks.

2. The module moving system of claim 1 wherein the transverse positionof at least one module location is fixed relative to the one track.

3. The module moving system of claim 2 including means for adjusting thefixed relative position of the module with respect to the one track atthe one location.

4. The module moving system of claim 1 wherein the support means is atransporter having means adaptable for transporting the module to thesite location.

5. The module moving system of claim 1 wherein there are a plurality offirst and second antifriction bearing means and rotation means. eachincluding an upper body section and a lower body section. first rollermeans for supporting the lower body section for movement along a track,a roller track segment, second roller means for supporting the rollertrack segment on the upper body section for transverse movement of theroller track segment. the module being supported on the roller tracksegments, and means for mounting the upper body section on the lowerbody section for rotation relative thereto about a generally verticalaxis.

6. The module moving system of claim 5 including guide means for holdingthe lower body sections on the tracks, and for holding the roller tracksegments on the upper body sections.

7. The module moving unit of claim 5 including means for adjustablyfixing the transverse position of at least one roller track segmentrelative to the track on which it is supported.

8. The module moving system of claim 7 further in cluding a screw shaftand rider, one end of the screw shaft being attached to the upper bodysection, the rider being attached to the roller track segment tothreadedly receive the screw shaft, whereby turning of the screw shaftvaries the fixed relative position of the roller track segment withrespect to the upper body section.

9. A module moving system for placing a module unit on a site foundationcomprising means for supporting the module unit alongside thefoundation, spaced tracks extending from between the module and supportmeans across the foundation, a plurality of six-way roller pads betweenthe module unit and the tracks, each six-way roller pad including anupper body section having a notch in its lower side and a lower bodysection having a notch in its upper side, the width of the notch in theupper body section being somewhat wider than the overall width of thelower body section, and the width of the notch in the lower body sectionbeing somewhat wider than the overall width of the upper body section,first roller means for supporting the lower body section for movementalong a track, a roller track segment, second roller means forsupporting the roller track segment on the upper body section fortransverse movement of the roller track segment relative to the track,the module being supported on the roller track segments, means formounting the upper body section on the lower body section such that thenotch in the upper body section fits within the notch of the lower bodysection for rotation relative thereto about a generally vertical axis,and means for applying force to move the module along the tracks.

10. The module moving system of claim 9 wherein the rotation mountingmeans further comprises a pin in one body section and an aperture in theother body section through which the pin extends, the body sectionshaving opposed bearing surfaces for rotation of the one body sectionrelative to the other about the pin.

1. A module moving system for placing a module unit on a site foundationcomprising means for supporting the module unit alongside thefoundation, spaced tracks extending from between the module and supportmeans across the foundation, first antifriction bearing means betweenthe module and tracks for movement of the module along the tracks,second antifriction bearing means located between the module and thetracks for allowing transverse movement of the module relative to atleast all but one of the tracks as the space between the tracks variesalong their length, means between the first and second antifrictionbearing means for providing rotation of the module unit relative to thetracks, and means for applying forcE to move the module along thetracks.
 1. A module moving system for placing a module unit on a sitefoundation comprising means for supporting the module unit alongside thefoundation, spaced tracks extending from between the module and supportmeans across the foundation, first antifriction bearing means betweenthe module and tracks for movement of the module along the tracks,second antifriction bearing means located between the module and thetracks for allowing transverse movement of the module relative to atleast all but one of the tracks as the space between the tracks variesalong their length, means between the first and second antifrictionbearing means for providing rotation of the module unit relative to thetracks, and means for applying forcE to move the module along thetracks.
 2. The module moving system of claim 1 wherein the transverseposition of at least one module location is fixed relative to the onetrack.
 3. The module moving system of claim 2 including means foradjusting the fixed relative position of the module with respect to theone track at the one location.
 4. The module moving system of claim 1wherein the support means is a transporter having means adaptable fortransporting the module to the site location.
 5. The module movingsystem of claim 1 wherein there are a plurality of first and secondantifriction bearing means and rotation means, each including an upperbody section and a lower body section, first roller means for supportingthe lower body section for movement along a track, a roller tracksegment, second roller means for supporting the roller track segment onthe upper body section for transverse movement of the roller tracksegment, the module being supported on the roller track segments, andmeans for mounting the upper body section on the lower body section forrotation relative thereto about a generally vertical axis.
 6. The modulemoving system of claim 5 including guide means for holding the lowerbody sections on the tracks, and for holding the roller track segmentson the upper body sections.
 7. The module moving unit of claim 5including means for adjustably fixing the transverse position of atleast one roller track segment relative to the track on which it issupported.
 8. The module moving system of claim 7 further including ascrew shaft and rider, one end of the screw shaft being attached to theupper body section, the rider being attached to the roller track segmentto threadedly receive the screw shaft, whereby turning of the screwshaft varies the fixed relative position of the roller track segmentwith respect to the upper body section.
 9. A module moving system forplacing a module unit on a site foundation comprising means forsupporting the module unit alongside the foundation, spaced tracksextending from between the module and support means across thefoundation, a plurality of six-way roller pads between the module unitand the tracks, each six-way roller pad including an upper body sectionhaving a notch in its lower side and a lower body section having a notchin its upper side, the width of the notch in the upper body sectionbeing somewhat wider than the overall width of the lower body section,and the width of the notch in the lower body section being somewhatwider than the overall width of the upper body section, first rollermeans for supporting the lower body section for movement along a track,a roller track segment, second roller means for supporting the rollertrack segment on the upper body section for transverse movement of theroller track segment relative to the track, the module being supportedon the roller track segments, means for mounting the upper body sectionon the lower body section such that the notch in the upper body sectionfits within the notch of the lower body section for rotation relativethereto about a generally vertical axis, and means for applying force tomove the module along the tracks.